Pump-lining extractor.



0. s; WRIGHT.

PUMP LINING EXTRACTOR.

APPLICATION FILED 00K. 25, 1913.

1,126,612. Patented Jan.26;1915

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" Application m October 25,

To all whom it may concern:

Be it known thatI, CLYDE S. WRIGHT, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented new and useful Improvements in Pump-Lining Extractors, of which'the following is a specification.

My invention relates to extractors for pump linings-or the like.

The object thereof is to produce a tool, efiicient and cheap, for pulling pumplinings or similar things from their casings or containers. p l

Referring to the accompanying drawing, Figure 1 is a central vertical section of a pump and my improved extractor applied thereto; and Fig. 2, is a cross-section of Fig. 1 on the line Il -II.

On the drawings, l'represents the pumpcasing containing the tubular liner 2, in which the piston3 works. 1

4 is the head of the extractor which'extends down into the end of thevlining and has the flange 5 thereon resting on the end of theliner to limit the distance the head may extend into the liner. The head has the transverse central opening 6 in axial aiinement with the axial center of the liner. Radial openings are provided in the head extending from the central opening to the outer face of the head. The radial slidable dog or jaws 7 are inserted in these radial openings having their outer ends toothed for biting engageface of the liner, an

slightly into the or jaws being ment with the interior their inner ends projecting central opening 6, the dogs held in their slots by the-pins 8 secured thereto and extending into the radial slots 9 in the head. The slots permit the dogs or jaws 7 to slide freely for limited distances. 11 is the stem or rod for actuating the. jaws 7 and forpulling the head and attached lining. lVithin the circle formed by the inner ends of the jaws 7 is the cone or wedge 10, which, when drawn onwardly, causes the jaws to move outwardly into engagement with the liner 2. The length of the slots 9 and the diameter of the cone is such that the cone cannot be drawn past the dogs even when the extractor is not'in use, thereby reventing the accidental separation of t .e head and cone. The upper or smaller end of the cone 10, extends out beyond the opening '6 to form the stem 11 by Specification of Letters Patent.

. longitudinally in. the casing in the tube, jaws carried able into engagement with the tube, a taper assrexon TO THE narrower. surety oomraiw,

A conrone'rron or OHIO.

rone-11mins, nxrnacron.

Patented. Jan. 2 1915.

1913. swarm- 97,184.

which the cone is actuated and the lining drawn from the casing. This stem is threaded and provided with the nuts 12 and 13, the former being seated on that side of the head toward which the cone 10 is tapered.

14 is a cross-bar or support resting-on the outer end of the casing 1 beyond the head and liner. The stem 11 extends through the cross-bar 14 and beyond the same, its outer end. being squared to receive a wrench or other tool, by which the stem may be turned. The nut 13 rests on the outer face of the cross-bar. The cross-bar or its equivalent may be held rigidly by other means than the casing, and the functions of the nut 13 and the cross-bar may evidently be supplied by any suitable gitudinally, provided the pump-casing be held from movement.

To operate-my extractor, the head 4 with the stem'll and the nut 12 is inserted in the liner 2' with the flange the top of the lining. The stem is then turned in the nut 12, whichlcauses the tapered or cone head 10 to force'the jaws into interlocking engagement with the liner. The cross-bar 14 is put over the stem. The nut 13 is then screwed down on the crossbar, which causes the head to pullthe liner 1. The harder the nut 13 draws up on the stem '11 the harder the jaws 7 bite into the liner, thereby preventing them from slipping.

The nut- 12 at all times keeps the head 4 and the stem 11 assembled with their cooperative surfaces near together, so that a slight turn of the stem will cause or permit the dies to moveon the head. The stem serves as a handle when the head is applied to the liner 2 and holds the stem erect so that it may be rotated without supporting with the hands. The nut 12 also permits the easy insertion ofthe bar 14 over the stem as it would not be easy to hold the stem while the bar is being put on; and also permits the nut 13 to be put on without hold ing up the stem. I Modifications may tion within the scope of I claim- -1. In a tube extractor,

be made in my inven the appended claiins.

thereby and movhead-surrounded by the jaws for moving them into such engagement, a nut supportmeans for pulling the stein lon- 5, 'if employed, on

a head insertible moving the stem,

ed by the head, a threaded stem carrving the taper head and working in the nut for causing the taper head to .move the jaws outwardly, and a second nut on the stem for the head, and the tube, longitudinally.

2. In a tube extractor, a head insertible in the tube,'ja 's carried thereby and movable into engagement with the tube, a taper head surrounded by the jaws for movm them into such engagement, a nut supported by the head, a threaded stem carryingthe taper head and working in the nut for causing the taper head to move the jawsoutwar 1y, 3, support resting on .the device from which the tube is to be extracted, and a nut Working on the stem and bearing on the su port for moving the stem, the head, and t e tube longitudinally in the said device.

3. In a tube extractor, a head insertible into the tube and provided with a central opening and radial openings, jaws movable in the radial openings and having portions extending into the central opening, a taperhead in the central openin and adapted to engage the said portions 0 the 'aws, means for drawing the taper-head in t c direction toward which it tapers, and means for preventing the taper-head from being drawn past the said portions of the jaws, ,thesaid means comprising apin and. slot connection between the head and 'aws.

Signed at Toledo, hi0, this 21'stfda'y of October, A. D. 1913.

CLYDE S. WRIGHT M. N. TABER, W. H. W LFGANG. 

